/Engine/Source/Runtime/Engine/Public/Audio.h
class FSoundSource
FAudioDevice&#...
AudioDevice
Owning audio device.
uint8:  1
bInitialized
Whether or not the sound source is initialized.
uint8:  1
bIsManuallyPaused
Whether or not we were paused manually.
uint8:  1
bIsPausedByGame
Whether we are paused by game state or not.
uint8:  1
bIsPreviewSound
Whether or not the sound is a preview sound.
uint32:  1
bIsVirtual
True if this isn't a real hardware voice
uint8:  1
bReverbApplied
Cached sound mode value used to detect when to switch outputs.
FSoundBuffer&#...
Buffer
Cached sound buffer associated with currently bound wave instance.
TSharedPtr<FDe...
DebugInfo
float
HPFFrequency
What frequency to set the HPF filter to. Note this could be caused by HPF distance attenuation.
int32
LastHeardUpdate
Last tick when this source was activeandhad a hearable volume
float
LastHPFFrequency
The last HPF frequency set. Used to avoid making API calls when parameter doesn't changing.
float
LastLPFFrequency
The last LPF frequency set. Used to avoid making API calls when parameter doesn't changing.
int32
LastUpdate
Last tick when this source was active
FVector
LeftChannelSourceLocation
The location of the left-channel source for stereo spatialization.
float
LFEBleed
The amount of a sound to bleed to the LFE speaker
float
LPFFrequency
What frequency to set the LPF filter to.
int32
NumFramesPlayed
The number of frames (Samples / NumChannels) played by the sound source.
int32
NumTotalFrames
The total number of frames of audio for the sound wave
uint8:  1
Paused
Whether or not we are actually paused.
float
Pitch
The pitch of the sound source.
float
PlaybackTime
The virtual current playback time. Used to trigger notifications when finished.
FThreadSafeBool
Playing
Whether we are playing or not.
FVector
RightChannelSourceLocation
The location of the right-channel source for stereo spatialization.
int32
StartFrame
The frame we started on.
int32
TickCount
Update tick count. Used to stop oldest stopping sound source.
uint32
VoiceId
Effect ID of this sound source in the audio device sound source array.
FWaveInstance&...
WaveInstance
Contained wave instance.